dosage

noun

dos·​age ˈdō-sij 

1

a

: the addition of an ingredient or the application of an agent in a measured dose

b

: the presence and relative representation or strength of a factor or agent

2

a

: dose sense 2

b(1)

: the giving of a dose

(2)

: regulation or determination of doses

3

: an exposure to some experience in or as if in measured portions

Examples of dosage in a Sentence

Recent Examples on the Web

Thyroid medication dosages also sometimes need to be adjusted. —Dr. John De Jong, Boston Herald, 31 May 2026

Jackson, who was later elected to the House as a Texas Republican, reported normal cardiac levels but increased the medication dosage to treat the president’s elevated cholesterol. —David Zimmermann, The Washington Examiner, 30 May 2026

Opponents to the bills worry the policy puts the administration of lethal drug dosages on the same footing as other forms of treatment, adding new cost-benefit pressures on patients, their doctors, facilities and insurers. —CBS News, 28 May 2026

But results are highly variable and depend heavily on individual biology, dosage and product quality. —Lauren Schuster, Miami Herald, 27 May 2026

Word History

First Known Use

1849, in the meaning defined at sense 1a

Rhymes for dosage

• overdosage

Kids Definition

dosage

noun

dos·​age ˈdō-sij 

1

a

: the giving of medicine in doses

b

: the amount of a single dose

2

: the addition or application of a substance in a measured dose

Medical Definition

dosage

noun

dos·​age ˈdō-sij 

1

a

: the addition of an ingredient or the application of an agent in a measured dose

b

: the presence and relative representation or strength of a factor or agent (as a gene)

2

a

: dose sense 1

b(1)

: the giving of a dose

(2)

: regulation or determination of doses